Did you read the entire interview? Doesn't sound like it!
There was an-in-depth explanation of what the posture was...and the internal fractures in the policy. There was no mission. There was no political possibility of having a real mission. We were in the middle of a genocidal civil war...where one of the sides clearly didn't want us there at all.
There were much bigger fish to fry...the Soviets who were angling in the region to smear us. And there was no initial understanding of Iran's complicity in hitting us. Not for YEARS. Cap was all for hitting who ever did it. But it wasn't a straightforward "we did it" situation.
It was a one-man suicide run. The "finger-prints" of Iran took a lot longer to piece together.
Pan-Islamism existed long before that. Tell it to the Marines, one guesses.